Ironing machine



A. HAMMER IRONING IACHINE Filed on. 7. 1927 June 30, 1931.

2 Sheets-Sheet l June 30, 1931. HAMMER IRONING'IACHINE Filed Oct. 7,1927 2 Sheets-Sheet 2 P\ x a 4 m 1 $1M w w B Q Q aw. B H lg 2 2 a. I x3% a y m w 6 fcrred constructional form of the ironing Patented June 30,1931 UNITED {STATES ARTHUR Hammer BERLIN, enmmm IRONING MACHINE 10 meansof a machine of this kind a quick and convenientironing will be possibleand in particular an easy and convenient manipulation of the sad-iron.Eurther improvements according to my invention relate to the specificconstruction of the sad-iron and its suspension as well' as to anarrangement whereby the lowering and raising of the sadiron may befacilitated in order to put the latter into and out of operation.

The accompanying drawings show a premachine according to my invention.In the drawings, Fig. 1 is a front view of pl cc of the operator, Fig. 2an end view, Fig. 3 all-enlarged vertical section, and

Fig. 4 aparti'al topview of the sad-iron together with the. accessoriestherefor.

Fig. 5 is an enlarged iront view and Fig. 6 an enlarged horizontalsection through a coupling device, said coupling device serving forraising and lowering the sad-iron by means of a motor.

Within the frame-like support 1 for the ironing machine, there isprovided an ironing board of relatively great length and relativelysmall width, saidironing board 2 being mounted upon a proper support 1a.The

left-hand end of the ironin board 2 projects lateral view partly inconsiderably beyond the Moot .o f:-the. jisu'p port 1a.

The sad-iron 3 consists of a metaldisc having an upwardly projecting rim3a, said disc being mounted upon a shaft 31) which is rotatablysupportedwithin a bearing 30. The bearing 30 is positioned within abody 4 ofbell-shaped conformation, said body 4 covv ering up said disc 3 andslightly overlapping I an ironing machine new ironing machine asseenfrom the" is suspended Application filed October 7, 1927, SeriaI No.224,661, and in'Germany October 25, 1926.

the rim 3a of the disc 3 by means of a rim 4a.

' In this manner a hollow space willbe formed which serves for thereception of the heating device 11. This heating device consists of asystem of pipes having downwardly directed orifices, a pipe 12 servingfor supplying gas to said system of pipes. The gases which are developedby the heating device 11 may discharge through perforations 4a which areprovided on-said bell-shaped bod 4. The underside of this bell-shaped b0y is pro vided with a cover 46 of asbestos. of asbestos serves for thepurpose of causing This cover 1 theheat' developed by the heating device11 to act as much as possiblesolely towards below upon the disc 3. Inorder to prevent the heat from beingconducted from the disc 3 throughits shaft 312, an insulating layer 3d of asbestgs is inserted into saidshaft. This may be accomplished by making the shaft 36 of two parts andby providing coupling flanges on the'facing ends of said shaft. Thecoupling flanges, are connected with each other by means of bolts 3fhaving the asbestos disc 3d interposed between said flanges. The

' weight which is required in order to produce a properpressure with thesad-iron is essentially. placed into the bell-shaped body 4, while tpossible. A hand-wheel 5 similar to the steering wheel for automobilesis mqunted upon the upper hub-shaped part 4a of the bell-shaped body 4.

The bell-shaped body 4 carrying the bearing for the sad-iron 3 issuspended by means of four chains or ropes 5a which are fixed at theirunder ends to the body 4, while their upper ends are connected to a.ring 56, which from a carriage 6. The'carriage 6 is mounted upon a rod 7which fixed to the forwardly directed arms of two double- 'arnied levers7a mounted at on the. forwardly overhanging u per part of the frame 1 ofthe machine, an extending essentially over the entire length ofsaiclframe 1. The

'rear end of the one of said levers 7a is equipped with a counter-poise76, while the rear end of the second double-armed lever (in Fig. 1 onvthe right-hand side) is connected by means of the operatingl'od 7b withe sad-iron 3 proper is made as light as a crank-pin 13, said crank-pinbeing mounted on a crank-shaft 15 which projects from the casing of acoupling device 14 as shown in Figs. 5 and 6, and more fully describedbe- 5 The sad-iron is driven by the aid of a flexible shaft 9 from theelectric motor 10, which together with the transmission gear forreducing the speed of rotation of the shaft contained in the usualmanner within a casing, is likewise mounted on the carriage 6 by the aidof the supporting ring 5?). Two plns 50 project from said ring towardsthe interior, said pins entering the casing of the motor in such amanner that the latter will be freely suspended from the ring 512.

The coupling device 14, as may be seen from Fig. 1, is provided on theright-hand side of the under part'of the machine frame 1. This couplingdevice serves for operating the raising and lowering mechanism for thesad-iron. The driving means consists of a small electric motor 16mounted on the machine frame above the device 14, the pulley of saidmotor 16' being connected by a belt 17 with a pulley 18 provided on asecond shaft 19 of the coupling device. The shaft 19 carries a gearwheel20, as shown in Fig. 6, said gear-wheel 20 meshing permanently with alarger gearwheel 21 fast on the crank-shaft 15. The

gear-wheel 21 is fixedly connected with a pinion 22 which is looselymounted upon the shaft, 15, said pinion meshing with a larger gear wheel23. The gear-wheel 23 is con nected with a sleeve 24 which is looselymounted upon a third shaft 25 of the coupling device. 'j The sleeve 24extends through the casing of the coupling device towardsthe outside andcarries at its outwardly projecting end a disc 26, which is providedwith three evenly spaced bores 27. A hollow bolt 28 may be brought intoengagement with said bores 27 said bolt being pushed towards the disc 26by action of a spring 29. The bolt 28 is guided within the bore 30 of acoupling member 31 keyed to the shaft 25 and provided at its end whichprojects forwardly from the body 31 with a nose 32. The wedge-shaped end33 of a bell-crank 35 mounted at 34 projects into the range of action ofsaid nose 32 and the other end of said bell-crank 35 is connected bymeans of an operating rod 36 with a treadle 8, as shown in Fig. 1, saidtreadle being mounted in the under part of the machine frame 1 andextending essentially all over the length of the latter.

The mode of operation of the device as described in the foregoing is asfollows If the pressing machine is out of operation and the sad-ironkept suspended at a certain distance above the ironing board 2, thecrank-pin 13 and the bell-crank 35 of the coupling device will assume aposition as indicated in Fig. 5 in full-drawn lines. If now the motor 16is caused to operate, the shaft 25 which is connected by means of thecoupling 26, 31 and the gears 23, 22, 21 and 20 with said motor 16, willrotate in the direction as indicated by the arrow and the crank-shaft 15whose gear 38 is in engagement with the gear 37 of the shaft 25 willlikewise make a rotarty motion. Prior to the first half-revolution o theshaft 25 the nose 32 on the disc '31 will engage the wedgeshaped end 33of the bell-crank 35,,so that the coupling bolt 28 will be lifted out ofthe respective bore 27 of the disc '26, whereby the two members 26 and31 of the coupling will be disconnected. In conse uence thereof also thecrank-shaft 15 will be ept at rest. If it is now desired to operate thepressing machine and to lower the sad-iron 3, the operator will step onthe treadle 8. .By this, the wedgeshaped end 33 of the bell-crank 35will be moved out of the range of action of the nose 32 and the latterwill thereby be released so that it will enter the nextbore 27 of thedisc 26, thus again establishing and engaging the coupling between themembers 26 and 31. The crank-shaft 15. will therefore be further rotatedand move out of its under dead-point position by the aid of the gears 37and 38, whereby the sad-iron will be properly lowered. After theoperator has released the treadle 8, the bell-crank '35 by action of abackwardly acting spring (not shown) will again assume the positionwhich is indicated in full-drawn lines in Fig. ,5. The nose 32 :willtherefore again engage the wedge-shaped end 33 of the bell-crank 35 sothat the coupling'bolt 28 will be lifted out of the respective bore 27,thus again interrupting the conmotion of the shaft 25 with the motor. Inconsequence thereof the crank-shaft 15 will again be kept at rest. Theratio of gearing between the gears which serve for the drive of themachine is so chosen, that the crankshaft 15 will be kept at rest in aposition which is diametrically opposed to the under position of thecrank 15, as shown in dotted lines in Fig. 5. a

In this manner the sad-iron may be raised and lowered as desired byoperating the treadle 8 without requiring any particular effort on thepart of the operator. This is of especial importance on account of thefact that the weight of the sad-iron together with its accessories isquite considerable. ing a large weight to the pressing device proper theoperation of pressing will be greatly facilitated. An especial advantageof the arrangement of a rotary sad-iron consists therein that the largeweight of the sadiron will hardly be noticeable during imparting amotion to the same, because the friction between the sad-iron and thesurface to be ironed thereby'will'be quite considerably re duced. Theweight of the suspension device for the sad-iron including the weight ofthe driving motor is preferably equalized by By giv- I properlydimensioning or adjusting the counterpoise 7a.

If it is desired to start with the operation of ironing, the sad-iron 3,which had previf ously been set in rotation by operating the motor 10,is carried over the piece of aundry or the like in longitudinaldirection of'the ironing board 2, upon which said piece of laundry isplaced. Phe sad-iron may now' very easily be moved to and fro over thesurface to be ironed by reason of the fact that it may easily follow themotion of the hand on account of the free suspension as well as onaccount of the possibility of easy displacement of the carriage 6. Inaddition to this, the motion of the sad-iron over the piece of laundryor the like, in spite of its large weight, will require a much smallerphysical effort on the part of the operator, than. would in a reductionof the pressing force exerted.

by the iron. If it is desired at certain times to produce not merely asmoothening effect but a greater pressure with the iron, as may forinstance be desirable in order to properly iron and press the folds orplaits of upper shirts,the motor is put out of action by oper-' ating aswitch arranged within the range of action of the operator. By simplyswitching the motor again into circuit itwill be possible to continuethe mere ironing or smoothening operation In order tOllSG the ironingmachine also for the purpose of ironing or pressing upper shirts andother pieces of laundry, whereby not solely smooth surfaces ofrelatively large extension shall be treated, an auxiliary sadiron 40 isrovided, as represented in Figs.

3 and 4. is auxiliary iron consists of a hollow cast-ironbody which isopen at its top. said. cast-iron body having about. the form of thefront pgrt of an ordinary sadiI'0Il.-= The hollow dy is covered up atits top by a metal sheet 141 fitting the circumference of said body,said metal sheet extending into a tongue fitting the curvature of thebell-shaped body 4 and being connected to the latterby means of screws.43. The screws extend into slots 44 provided in the flaps 42, wherebythe auxiliary sad-iron 40 may be adjusted with respect to the main sadiron. The auxiliary sad-iron is preferably said carriage, and a motordriven sad-iron equipped with a special heating device 46 which consistsof a-burner provided in the hollow space of the iron, said burner beingsupplied with gas by means of a pipe stud 47 mounted inthe cover plate41.

When the auxiliary iron is attached, device is used in such away thatthe sad-iron 3 continues to execute its rotary motion in which theauxiliary iron does not partake, as the same is (in-connection with thebell-shaped body 4. But an independent motion to and fro in the plane ofthe ironing board may be imparted to the auxiliary iron by means of acorresponding motion of the hand-wheel 5.

I claim I 1. An ironing machine of the character described, comprlsin asad-iron mounted ro- I tatably within a .aring body, supporting,

means, and a plurality of suspension members connected .to said bearingbody and to said supporting means and having their upper as well astheir under connecting points distanced from each other.

2. An ironing machine of the character described, comprising a sad-ironmounted ro-. tatably within a bearin body, supporting means, and aplurality o flexible suspension members attached at points spaced apartfrom each other to said bearing body as well asto said supporting means.

3. 'In an ironing machine of the character described, a frame, a carriermovable along said frame, a rotatable motor driven sad-iron suspendedfrom said carrier, and means for raising and lowering said carriertogether with said sad-iron.

4. In an ironing machine of the character described, a frame, a carriermovable along said frame, a sad-iron suspended from said carrier, motordriven means for raising and lowering said carrier together with saidsadiron, and controlling means for said raising and lowering means.

5. An ironing machine, comprising a frame, a carriage displaceable alongsaid frame, a motor mounted on said carriage, a bearing body suspendedfrom said carriage so as to be able to swim in all directions, asad-iron mounted rotata ly within said bearing body, and flexibledriving means connecting said sad-iron to said motor.

.6., An ironing'machine, comprising a fixed guideway, a carriagedisplaceable along said guideway, a bearing body suspended from mountedrotatably within said bearing body.

7. An ironing machine of the character described, comprising asad-ironof circular form mounted rotatably within a. bearing body, suporting means, an ironing table, and flexible suspension. meansconnected to said supporting means and adapted tosuspend said bearingbody together with said sad-iron so as to be displaceable all over saidironing table. I

the 7 means so as to be a le to be swung in difierent vertical planes,and a sad-iron rotatably mounted within said bearing body.

9. In an ironing machine of the character described, supporting means, abell-shaped bearing body freely suspending from said supporting means, arotatable motor-driven sad-iron having an upwardly extending andperipherally projecting edge, said bearing body having a downwardlyextending and peripherally projecting edge slightly overlapping saidformer edge, a hollow space provided intermediate said bearingbody andsaid sad-iron, and heating means provided in said hollow space. i

10. An ironing machine of the character described, comprising a bearingbody, a sadiron mounted rotatably within said bearing body, supportingmeans, flexible suspension means attached to said bearing body and tosaid supporting means, a motor,land a drive connection between saidmotor and said sad- 1ron.

11. An ironing machine of the character described comprising a bearingbody, a sa diron mounted rotatably within said bearing body, supportingmeans, a plurality of suspension members attached to said bearing bodyand to said supporting means in an upper and a lower group ofattachingapoints,

ing said motor to said sad-iron.

13. An ironing machine of the character described, comprising a bearingbody, a sadiron mounted rotatably within said bearing body, stationarysupporting means, a carriage displaceable along said supporting" means,substantially vertically extending suspenslon means attached to saidbearing body and to said carriage, a motor mounted on said carriage, anda drive connection be-. tween said motor andsaid sad-iron.

14. In an ironing machine of the character described, a displaceablesupporting member, a rotatable sad-iron, means to suspend said sad-ironfrom said supporting member so asto allow said sad-iron to be displacedto all sides, a motor, and drive means 0 eratively connecting said motorto said sa -.iron.

, 15. An ironin machine of the character described, comprisin a bearingbody, a sad- 'iron mounted rotata ly within said bearing body,stationary supporting means, a carriage displaceable along saidsupporting means, substantially vertically extending suspension meansattached to said bearing body and to said carriage,and a motor mountedon said carriage and adapted to drive said sad-iron.

In testimony whereof I aflix my signature.

ARTHUR HAMMER.

